Hire Kotlin Developer — Android apps and Ktor backends
Kotlin teams ship on two fronts: polished Android apps and lean Ktor backends sharing the same language. I build Jetpack Compose UIs with clean MVVM architecture, and server-side services with coroutines, Ktor, and Exposed. One language across mobile and backend means shared models, fewer translation bugs, and a smaller hiring surface for your team.
I'm Omer Muneer Qazi, a Dubai-based Fractional CTO & Solutions Architect with 15+ years of experience and 100+ projects delivered across 6 countries. If your mobile strategy spans both platforms, you can also hire Swift developer capacity for iOS, or see the full bench.
Android apps and Ktor backends, one language
Android apps (Compose)
Native Android apps in Jetpack Compose with MVVM, Hilt DI, and Room persistence. Material 3 theming, offline-first sync, and Play Store release management are all included.
Ktor backend services
Lightweight Kotlin backends on Ktor with coroutine-based concurrency and typed routing. JWT auth, OpenAPI docs, and Postgres via Exposed come standard in every service I build.
Coroutines & Flow architecture
Structured concurrency with viewModelScope and Flow for reactive UIs. Cancellation, error propagation, and strict dispatcher discipline are designed in — no leaked coroutines ever in production.
Multiplatform sharing
Kotlin Multiplatform Mobile for shared business logic between Android and iOS. Networking, caching, and domain models live once in common code; only the UI stays native.
CI & Play Store pipeline
Gradle build optimization, detekt and ktlint gates, and automated Play Store tracks via Fastlane. Signing, versioning, staged rollouts, and crash reporting via Firebase run fully hands-free.
Codebase modernization
Java-to-Kotlin migrations done incrementally, module by module, with interop kept clean. Legacy AsyncTask and XML layouts get replaced without freezing feature work, and Compose adoption is staged behind feature flags.
From scope to Play Store in sprints
A structured engagement with no surprises — you’ll always know what’s happening and what’s next.
Product & platform scope
We define the app's screens, the backend's API surface, and what stays shared. You get wireframe-aligned milestones and a clear Android-first or backend-first sequence.
Iterative builds
Bi-weekly builds on Firebase App Distribution with demoed features. Backend endpoints land in parallel so mobile integration never waits on a big-bang API drop.
Testing & polish
Unit tests on ViewModels, instrumented UI tests on critical flows, and Ktor endpoint tests. Accessibility, dark mode, and tablet layouts get real attention before release.
Release & iterate
Staged Play Store rollout with crash monitoring and feature flags. Post-launch, we prioritize from real analytics — not guesses — in tight feedback loops.
Why hire a Kotlin developer through a fractional CTO
Kotlin's strength is boring reliability: null safety catches crashes, coroutines tame threading, and Google's backing keeps the ecosystem maturing. I've shipped Android apps through Play Store review and Ktor services behind real traffic — the judgment to pick Compose over XML or Ktor over Spring comes from doing both.
I work embedded in your repo and Slack with weekly demos, documenting decisions as ADRs. Expect pragmatic platform calls — Compose versus XML, Ktor versus Spring. Contact me to scope your Android or backend build.
Frequently asked questions
Kotlin Multiplatform or fully native apps?
Share business logic via KMM and keep UIs native — that split gets you code reuse without compromising platform feel. Full Compose Multiplatform UI sharing is maturing but still a case-by-case call.
Can you migrate our Java Android app to Kotlin?
Yes, incrementally — module by module, with Java interop kept clean so features keep shipping. New screens go Compose-first while legacy XML is replaced on a planned schedule.
Is Ktor production-ready for backends?
For small-to-mid services, absolutely — coroutine-native, lightweight, and easy to operate. For heavy enterprise integration with Spring's ecosystem, I'll tell you when Spring Boot is the safer choice.
Do you handle Play Store submission?
End to end: signing, store listing, privacy disclosures, and staged rollouts via Fastlane. I also prep the data-safety forms and review-guideline checks that cause most rejections.
How do we start?
Send your requirements through the contact page for a scoped proposal. Discovery is technical — we walk your product goals, platform constraints, and timeline before any commitment.
Build your Kotlin app or backend
Share your product goals and platform targets — I'll reply with a scoped plan, timeline, and architecture sketch.